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TradeLab-MCP

TradeLab-MCP

by CaioAllgayer
OverviewSchemaSourceRelated ServersDiscussionsAdmin
Python
Local

list_terminals

Lists installed MetaTrader terminal data folders under the default directory, so you can identify available terminals for backtesting and quantitative research.

Instructions

Enumerate MetaTrader terminal data folders under %APPDATA%\MetaQuotes\Terminal.

Tool call template

This tool declares no required parameters. Add optional parameters from the input schema as needed.

{
  "id": 1,
  "jsonrpc": "2.0",
  "method": "tools/call",
  "params": {
    "arguments": {},
    "name": "list_terminals"
  }
}

Input Schema

NameRequiredDescriptionDefault

No arguments

Schema Changelog

Changes observed during successful MCP inspections.

  1. First observedv0.1.0

TDQS

A4.2/5.0
Behavior4/5

Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?

With no annotations present, the description carries the behavioral disclosure burden. It clearly conveys a read-only enumeration operation over a specific filesystem path. It does not detail edge cases or output formatting, but for a zero-input list tool the core behavior is transparently stated.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Conciseness5/5

Is the description appropriately sized, front-loaded, and free of redundancy?

The description is a single, well-structured sentence that leads with the action verb and contains no filler or redundant information. Every word adds value.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Completeness4/5

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

For a tool with no parameters and no output schema, the description provides the essential operational context: what is enumerated and where. It could add the expected return shape (e.g., a list of absolute paths) or clarify behavior when APPDATA is unavailable, but these are minor gaps for such a simple tool.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Parameters4/5

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

The input schema has zero parameters and schema coverage is 100%, so there are no parameter semantics for the description to clarify. The 0-parameter baseline of 4 applies.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Purpose5/5

Does the description clearly state what the tool does and how it differs from similar tools?

The description states a specific verb ('Enumerate'), a clear resource ('MetaTrader terminal data folders'), and a precise location ('%APPDATA%\MetaQuotes\Terminal'). It is immediately distinguishable from siblings like select_terminal or kill_terminal because it only lists folders and does not act on them.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Usage Guidelines3/5

Does the description explain when to use this tool, when not to, or what alternatives exist?

The description implies the tool should be used when the agent needs to discover installed MetaTrader terminal data folders. However, it does not explicitly mention when to prefer this over select_terminal or any other sibling, nor does it state any prerequisites or exclusions.

Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.

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